// fn main() {
//     let number = 7;
//     if number < 5 {
//         println!("condition was true");
//     } else {
//         println!("condition was false");
//     }
// }

// fn main() {
//     let number = 3;
//     if number {
//         println!("number was three");
//     }
// }

fn main() {
    let number = 3;
    if number != 0 {
        println!("number 是一个 非0 的其他数字");
    }
}
